/*
 * Copyright (c) 2011 Imre Fazekas.
 * All rights reserved.
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this
 * list of conditions and the following disclaimer.
 *
 * Redistributions in binary form must reproduce the above copyright notice,
 * this list of conditions and the following disclaimer in the documentation
 * and/or other materials provided with the distribution.
 * Neither the name of the Brillien nor the names of its
 * terms and concepts may be used to endorse or promote products derived from this
 * software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package com.vii.streamline.services.json.converters;

import org.svenson.converter.TypeConverter;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 * Specialized TypeConverter
 */
public class DateConverter implements TypeConverter {

    public static final String  DEFAULT_FORMAT = "MM/dd/yyyy";

    private boolean             timeInMillisecs;
    private String              format;
    private SimpleDateFormat    formatter;

    {
        formatter = new SimpleDateFormat( format = DEFAULT_FORMAT );

        timeInMillisecs = false;
    }

    public DateConverter() {
    }

    public DateConverter(String format) {
        formatter = new SimpleDateFormat( this.format = format );
    }

    public String getFormat() {
        return format;
    }

    public SimpleDateFormat getFormatter() {
        return formatter;
    }

    public void setFormat(String format) {
        this.format = format;
        formatter = new SimpleDateFormat( format );
    }

    public void setFormatter(SimpleDateFormat formatter) {
        this.formatter = formatter;
    }

    public boolean isTimeInMillisecs() {
        return timeInMillisecs;
    }

    public void setTimeInMillisecs(boolean timeInMillisecs) {
        this.timeInMillisecs = timeInMillisecs;
    }

    @Override
    public Object fromJSON(Object o) {
        if( o == null || o.toString().length() == 0 )
            return null;

        try {
            long l = Long.parseLong( o.toString() );
            return new Date( l );
        } catch (NumberFormatException ne){
            try{
                return formatter.parse( o.toString() );
            } catch (ParseException e) {
                throw new IllegalArgumentException( e );
            }
        }
    }

    @Override
    public Object toJSON(Object o) {
        return o == null ? null : (timeInMillisecs ? new Long( ((Date)o).getTime() ) : formatter.format( o ) );
    }

}
